如何在Django管理表单save_model中获取字段值

Question

I have the following model:

class Guest(models.Model):
    first_name = models.CharField(max_length=128)
    last_name = models.CharField(max_length=128)
    category = models.ForeignKey(Category)
    player_achievement = models.ForeignKey(PlayerAchievement, related_name="guest_achievements")
    player = models.ForeignKey(Player)

I want to get the player selected in the form to use in my save_model method:

def save_model(self, request, obj, form, change):
        player = ??? how do i get this from the admin form?


        obj.player = player
        obj.save()

Answer 1

It depends on how you declared your form. If you inherited the ModelForm , then you should in most cases use ModelChoiceField to select the associated Player with your Guest object and this is through calling form.cleaned_data.get('player')